This is for those people like myself who don't quite understand pokemon natures and evs. Basically a pokemon's nature increases one stat while decreasing another. Based on the pokemon's moveset or ability, you want to get a nature that benefits your fighting style. Pokemon Nature table:
Nature Increased stat Decreased stat
Hardy — —
Lonely +10% Attack -10% Defense
Brave +10% Attack -10% Speed
Adamant +10% Attack -10% Sp. Attack
Naughty +10% Attack -10% Sp. Defense
Bold +10% Defense -10% Attack
Docile — —
Relaxed +10% Defense -10% Speed
Impish +10% Defense -10% Sp. Attack
Lax +10% Defense -10% Sp. Defense
Timid +10% Speed -10% Attack
Hasty +10% Speed -10% Defense
Serious — —
Jolly +10% Speed -10% Sp. Attack
Naive +10% Speed -10% Sp. Defense
Modest +10% Sp. Attack -10% Attack
Mild +10% Sp. Attack -10% Defense
Quiet +10% Sp. Attack -10% Speed
Bashful — —
Rash +10% Sp. Attack -10% Sp. Defense
Calm +10% Sp. Defense -10% Attack
Gentle +10% Sp. Defense -10% Defense
Sassy +10% Sp Defense -10% Speed
Careful +10% Sp. Defense -10% Sp. Attack
Quirky — —
Someone else can elaborate on Ev's.
Nature Increased stat Decreased stat
Hardy — —
Lonely +10% Attack -10% Defense
Brave +10% Attack -10% Speed
Adamant +10% Attack -10% Sp. Attack
Naughty +10% Attack -10% Sp. Defense
Bold +10% Defense -10% Attack
Docile — —
Relaxed +10% Defense -10% Speed
Impish +10% Defense -10% Sp. Attack
Lax +10% Defense -10% Sp. Defense
Timid +10% Speed -10% Attack
Hasty +10% Speed -10% Defense
Serious — —
Jolly +10% Speed -10% Sp. Attack
Naive +10% Speed -10% Sp. Defense
Modest +10% Sp. Attack -10% Attack
Mild +10% Sp. Attack -10% Defense
Quiet +10% Sp. Attack -10% Speed
Bashful — —
Rash +10% Sp. Attack -10% Sp. Defense
Calm +10% Sp. Defense -10% Attack
Gentle +10% Sp. Defense -10% Defense
Sassy +10% Sp Defense -10% Speed
Careful +10% Sp. Defense -10% Sp. Attack
Quirky — —
Someone else can elaborate on Ev's.